a. 阴沉的, 产生阴暗的, 造成黑暗的

[ adj ]
dark and gloomy
<adj.all>
a tenebrous cave

Tenebrific \Ten`e*brif"ic\, a. [L. tenebrae darkness + facere to
make.]
Rendering dark or gloomy; tenebrous; gloomy.

It lightens, it brightens,
The tenebrific scene. --Burns.

Where light
Lay fitful in a tenebrific time. --R. Browning.